This product is the patent product that we develop and develop independently , is used in regulation and the flow control in vein infusion mainly, it can carry out regulation at the right moment according to condition and medicine needs , makes infusion more scientific and accurate. The treatment effect that has raised medicine has reduced the medicine occurence rate of side effect greatly , and makes medical worker free oneself from traditional sheet rely on the original operation method of visual examination and the adjusting control of by hand. Product safety is reliable, operating and simple , is applied extensively in vein infusion field , is clinical to modernize to have offered more safe reliable tool.